Elwynn, Awakened

Other Forests you control become 2/2 Treefolk creatures with reach. They're still lands.
If a Forest you control would be put into a
graveyard from the battlefield, exile it instead.
Return it to the battlefield under its owner's
control at the beginning of the next end step.
"Elwynn, mother to all trees. Her slumber ends, now
the land itself will march against him."
--Nissa Revane